Filling carrier for shuttleless looms



1964 E. L. REMlN GTON 3,

FILLING CARRIER FOR SHUTTLELESS LOOMS Filed Oct. 27. 1961 I) so 21 22 10 ;}Ei 7:: l .111: I I l I ziijjjiiliiiiliilt I: iii

INV EN TOR.

A T TORNE Y ELLIOTT L. REMINGTON United States Patent 3,116,761 FILLING CARRIER FOR SHUTTLELESS LOOMS Elliott L. Remington, Hopkinton, Mass, assignor to Draper Corporation, Hopedale, Mass., a corporation of Maine Filed Oct. 27, 1961, Ser. No. 148,166 4 Claims. (Cl. 139122) This invention pertains to improvements in filling carriers for use in shuttleless looms, that is, looms of the type in which the filling yarn is supplied from a source outside of the shuttle or filling inserting means itself.

It is a general object of the invention to provide a novel replaceable filling carrier that is separable from the carrier inserting member.

It is a further object of the invention to provide a replaceable carrier which when assembled with the various components that form the complete unit for filling insertion, will be guarded against interference with the warp threads between which it passes and with the filling yarn being inserted.

It is a further and more specific object of the invention to provide an inexpensive replaceable filling carrier that is easily detached from or assembled to the carrier inserting member while on the loom.

Further objects of the invention will become apparent from the following more detailed disclosure.

In so-called shuttleless looms, that is, looms in which filling is supplied from an outside source and is not carried to and fro through the shed by the shuttle or carrier itself, it is common practice to introduce each pick of filling by two reciprocating elements, one of which will hereinafter be referred to as an inserter or inserting member and the other of which receives or has transferred to it that loop of filling projected into the shed by the inserting member will hereinafter be referred to as a filling receiving or filling extending carrier.

Filling carriers of the type described herein function in a manner well known to those conversant with this art, and it is considered sufficient at this point merely to call attention to certain patents which illustrate and described the type of filling carriers to which the instant invention pentains. Accordingly, attention is drawn to Patents Numbered 2,586,638 and 2,705,508.

According to the invention a detachable filling carrier has been devised which can be easily and quickly detached and replaced on the carrier inserting member while on the loom without removing or disturbing the various settings of the many parts associated therewith and without affecting the certainty with which the carrier is caused to function. Although by way of example the figures of drawing illustrate the invention as applied to the inserting member, it is to be understood that it is equally adaptable to the filling extending carrier.

The invention will be described hereinafter in greater detail by reference to the accompanying figures of drawing, in which:

FIG. 1 is a plan view partially illustrated by phantom lines of a filling carrier to which the invention has been applied.

FIG. 2 is a view similar to that of FIG. 1 except shown in side elevation.

FIG. 3 is a perspective view, certain parts being shown exploded, and further illustrating the details of a preferred form of the invention.

FIG. 4 is a sectional view looking in the direction of the indicating arrows taken along line 44 of FIG. 1.

FIG. 5 is a sectional view looking in the direction of the indicating arrows taken along line 55 of FIG. 2.

Now referring to the figures of drawing, a flexible inserting member or tape is preferably used to reciprocate the thread carrying member generally indicated by numeral 11 which is caused to enter the shed and to be withdrawn therefrom. The forward portion of the carrier or that part which projects a loop of filling yarn part way through the shed is of the usual box-like structure including a filling engaging notch 12 in the top planar portion and a notch 13 which cooperates therewith in its lower surface. This portion of the carrier forms no part of the instant invention; however, reference to United States Patent No. 2,928,427 sets forth in detail a complete description of the carrier and the function for which it is intended.

The free end of tape 10 is provided with a centrally disposed, longitudinally aligned, preformed semi-circular raised surface 14 which serves as a means for positioning the carrier 11 thereon. The underside of the trailing end of carrier 11 as at 15, conforms generally to the upper configuration of the free end of tape 11) and forms mating surfaces between these members. The upper raised surface 14 provided on the free end of tape 10 forms a recess 1-6 on the underside of said tape into which an anchoring block 17 of conforming shape is adapted to seat. The upper surface of the carrier is divided at its trailing end, forming side walls 18 and 191which gradually taper downwardly to blend with the upper surface of tape 10. Extending for a portion of their length, side walls 18 and 19 are interconnected by a fiat, recessed and horizontally disposed web 20 which includes two contiguous, centrally and longitudinally aligned countersunk holes 21 and 22. These holes are adapted to receive therein attachment screws 23 and 24 the threaded portions of which extend through and beyond web 20 thence through elongated and aligned slots 25 and 26 provided in the raised surface 14 and the assemble in aligned tapped holes 27 and 28 provided in the curved upper surface of the anchoring block 17. Slots 25 and 26 being elongated permit longitudinal adjustment of the carrier to assure proper assembly to that member.

The radius which forms recess 16 is smaller dimensionally than the curved upper surface of the anchoring block 17 and the underside of the trailing end of the carrier as at 15 into which the raised surface 14 is caused to assemble creating a condition which causes said recess to conform to these surfaces when assembled there-with. In assembly the drawing in of the anchor-ing block by means of the attachment screws 23 and 24 causes this recess to spread assuring a positive and binding fit between these members.

In operation the carrier enters the shed formed by Warp threads and presents a loop of filling yarn to a companion carrier which when received by said carrier extends that loop of filling yarn through the remainder of the shed in a manner well known to those familiar with this art. The carrier enters the shed and is withdrawn therefrom free from interference with the warp threads or with the filling yarn being inserted because of the various yarn deflecting surfaces formed by the combination of the carrier, tape and anchoring block. The tape it at its forward end tapers inwardly as at 22 and 31) to conform dimensionally with the width of the carrier. The carrier 11 when positioned on tape 1% permits the raised surface 14 to protrude and extend rearwardly from between said carriers trailing, divided side walls 18 and 19 thus forming a camming surface over and across which the upper Warp sheet of the closing shed is caused to pass during withdrawal of said carrier from the shed. The anchoring block 17 which is adapted to seat in the recess formed by the raised surface 14 on the underside of the tape extends below the lower surface of said tape as at 31 forming a camming surface over and across which the lower warp sheet is caused to pass during insertion and withdrawal of the carrier from the shed.

The combination of the carrier, tape and anchoring block assembled in this manner forms a unitary but easily replaceable device for introducing each pick of filling without affecting the certainty with which the device itself is caused to function.

The invention has been described in more or less specific terms and by reference to its application to a particular type of shuttleless loom. It is to be understood, however, that these looms take varying forms and in place of flexible tapes the carriers may be reciprocated by relatively stiff and straight members such as needles and the actual carriers themselves and the filling handling devices may be drastically modified so long as the general principles of operation remain the same.

While one embodiment of hte invention has been disclosed, it is to be understood that the inventive concept may be carried out in a number of Ways. This invention is, therefore, not to be limited to the precise details described, but is intended to embrace all variations and modifications thereof falling within the spirit of the invention and the scope of the claims.

I claim:

1. For a loom having a reciprocable carrier by which filling from an outside source of supply is placed within sheds formed by warp threads, :1 filling carrier, a flexible carrier inserting member and an anchoring block, a raised and integrally formed carrier positioning element forming the tip of the free end of said carrier inserting member, said filling carrier being detachably mounted on said positioning element through a cooperating means with said anchoring block, said block being clampingly received in said raised positioning element.

2. For a loom a reciprocable carrier by which filling from an outside source of supply is placed within sheds formed by warp threads, at filling carrier, a carrier inserting member and an anchoring block, a carrier positioning element forming the tip of the free end of said carrier inserting member, said filling carrier being detachably mounted on said positioning element through a cooperating means with said anchoring block, said positioning element comprising a longitudinally aligned, centrally disposed, preformed semi-circular raised surface on which said carrier is adapted to assembly through said cooperating means with said anchoring block positioned beneath said raised surface.

3. For a loom a reciprocable carrier by which filling from an outside source of supply is placed within sheds formed by warp threads, a filling carrier, a carrier inserting member and an anchoring block, a carrier positioning element forming the tip of the free end of said carrier inserting member, said filling carrier being detachably mounted on said positioning element through a cooperating means with said anchoring block, said cooperating means comprising attachment screws passing through said carrier positioning element from said carrier and into said anchoring block.

4. For a loom a reciprocable carrier by which filling from an outside source of supply is placed within sheds formed by Warp threads, a filling carrier, a carrier inserting member and an anchoring block, a carrier positioning element forming the tip of the free end of said carrier inserting member, said filling carrier being detachably mounted on said positioning element through a cooperating means with said anchoring block, said carrier, carrier positioning element and said anchoring block including yarn deflecting surfaces for preventing interference with said warp threads as said carrier is inserted into said shed and withdrawn therefrom.

References Cited in the file of this patent UNITED STATES PATENTS 1,856,119 Tomkinson et a1 May 3, 1932 2,705,508 Flamand Apr. 5, 1955 2,928,427 Flamand Mar. 15, 1960 FORElGN PATENTS 372,250 Great Britain May 5, 1932 570,457 Great Britain July 5, 1945 

1. FOR A LOOM HAVING A RECIPROCABLE CARRIER BY WHICH FILLING FROM AN OUTSIDE SOURCE OF SUPPLY IS PLACED WITHIN SHEDS FORMED BY WARP THREADS, A FILLING CARRIER, A FLEXIBLE CARRIER INSERTING MEMBER AND AN ANCHORING BLOCK, A RAISED AND INTEGRALLY FORMED CARRIER POSITIONING ELEMENT FORMING THE TIP OF THE FREE END OF SAID CARRIER INSERTING MEMBER, SAID FILLING CARRIER BEING DETACHABLY MOUNTED ON SAID POSITIONING ELEMENT THROUGH A COOPERATING MEANS WITH SAID ANCHORING BLOCK, SAID BLOCK BEING CLAMPINGLY RECEIVED IN SAID RAISED POSITIONING ELEMENT. 